WO2008037745A3 - Pompe à pistons radiaux pour l'alimentation en carburant à haute pression - Google Patents
Pompe à pistons radiaux pour l'alimentation en carburant à haute pression Download PDFInfo
- Publication number
- WO2008037745A3 WO2008037745A3 PCT/EP2007/060224 EP2007060224W WO2008037745A3 WO 2008037745 A3 WO2008037745 A3 WO 2008037745A3 EP 2007060224 W EP2007060224 W EP 2007060224W WO 2008037745 A3 WO2008037745 A3 WO 2008037745A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- piston
- foot
- piston foot
- drive
- fuel supply
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0408—Pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
- F02M59/04—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by special arrangement of cylinders with respect to piston-driving shaft, e.g. arranged parallel to that shaft or swash-plate type pumps
- F02M59/06—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by special arrangement of cylinders with respect to piston-driving shaft, e.g. arranged parallel to that shaft or swash-plate type pumps with cylinders arranged radially to driving shaft, e.g. in V or star arrangement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
- F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
- F02M59/102—Mechanical drive, e.g. tappets or cams
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0426—Arrangements for pressing the pistons against the actuated cam; Arrangements for connecting the pistons to the actuated cam
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Details Of Reciprocating Pumps (AREA)
- Fuel-Injection Apparatus (AREA)
- Reciprocating Pumps (AREA)
Abstract
Pompe à pistons radiaux pourvu d'un entraînement à excentrique pour l'alimentation en carburant à haute pression dans des systèmes d'injection de carburant de moteurs à combustion interne. Dans les pompes de ce type, le problème est que la force qui se crée lors de la compression du carburant au niveau de la face supérieure, éloignée de l'arbre d'entraînement, d'un piston (10i) est répartie de manière plus ou moins inégale sur la jupe (20i) du piston et sur sa surface (38i) située du côté de l'arbre d'entraînement et se trouvant en interaction directe ou indirecte avec l'excentrique. L'objet de la présente invention est de réduire la sollicitation de la jupe (20i) du piston et le risque résultant de défaillance du matériau ainsi que l'usure provoquée par l'interaction de la jupe (20i) du piston avec l'excentrique. A cet effet, l'extrémité ou plus précisément la jupe (20i) du piston se trouvant du côté de l'arbre d'entraînement présente une configuration particulière. Grâce à la présente invention, la surface transversale disponible dans la zone de l'extrémité ou plus précisément de la jupe (20i) du piston est utilisée d'une meilleure manière pour une transmission homogénéisée de la force.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610045897 DE102006045897B4 (de) | 2006-09-28 | 2006-09-28 | Radialkolbenpumpe zur Kraftstoffhochdruckversorgung |
DE102006045897.4 | 2006-09-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2008037745A2 WO2008037745A2 (fr) | 2008-04-03 |
WO2008037745A3 true WO2008037745A3 (fr) | 2008-08-14 |
Family
ID=39134241
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2007/060224 WO2008037745A2 (fr) | 2006-09-28 | 2007-09-26 | Pompe à pistons radiaux pour l'alimentation en carburant à haute pression |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102006045897B4 (fr) |
WO (1) | WO2008037745A2 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2023013759A (ja) | 2021-07-16 | 2023-01-26 | 株式会社Soken | サプライポンプ |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3505176C1 (de) * | 1985-02-15 | 1986-04-24 | Hauhinco Maschinenfabrik G. Hausherr, Jochums Gmbh & Co Kg, 4300 Essen | Radialkolbenpumpe für hydraulische Medien |
DE19814506A1 (de) * | 1998-04-01 | 1999-10-14 | Bosch Gmbh Robert | Radialkolbenpumpe zur Kraftstoffhochdruckversorgung |
WO2003014569A1 (fr) * | 2001-08-08 | 2003-02-20 | Crt Common Rail Technologies Ag | Pompe d'alimentation haute pression |
WO2005088125A1 (fr) * | 2004-03-09 | 2005-09-22 | Robert Bosch Gmbh | Pompe haute pression, notamment pour un dispositif d'injection de carburant d'un moteur a combustion interne |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH319368A (de) * | 1954-07-09 | 1957-02-15 | Stempel Hermetik Gmbh | Kolbenkompressor für Kompressionskältemaschinen |
DE2909248C2 (de) * | 1979-03-09 | 1984-03-15 | J.M. Voith Gmbh, 7920 Heidenheim | Arbeitskolben für eine hydrostatische Kolbenmaschine |
JPH06323240A (ja) * | 1993-05-13 | 1994-11-22 | Sumitomo Electric Ind Ltd | プランジャポンプ |
DE19846367C2 (de) * | 1998-10-08 | 2003-06-12 | Bosch Gmbh Robert | Radialkolbenpumpe |
DE10039210A1 (de) * | 2000-08-10 | 2002-02-28 | Siemens Ag | Radialkolbenpumpe mit zweiteiligem Federträger |
DE10247645A1 (de) * | 2002-10-11 | 2004-04-22 | Robert Bosch Gmbh | Radialkolbenpumpe zur Kraftstoffhochdruckversorgung |
WO2006037674A1 (fr) * | 2004-10-06 | 2006-04-13 | Siemens Aktiengesellschaft | Pompe a pistons radiaux caracterisee par un graissage ameliore de la commande a excentrique |
-
2006
- 2006-09-28 DE DE200610045897 patent/DE102006045897B4/de not_active Expired - Fee Related
-
2007
- 2007-09-26 WO PCT/EP2007/060224 patent/WO2008037745A2/fr active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3505176C1 (de) * | 1985-02-15 | 1986-04-24 | Hauhinco Maschinenfabrik G. Hausherr, Jochums Gmbh & Co Kg, 4300 Essen | Radialkolbenpumpe für hydraulische Medien |
DE19814506A1 (de) * | 1998-04-01 | 1999-10-14 | Bosch Gmbh Robert | Radialkolbenpumpe zur Kraftstoffhochdruckversorgung |
WO2003014569A1 (fr) * | 2001-08-08 | 2003-02-20 | Crt Common Rail Technologies Ag | Pompe d'alimentation haute pression |
WO2005088125A1 (fr) * | 2004-03-09 | 2005-09-22 | Robert Bosch Gmbh | Pompe haute pression, notamment pour un dispositif d'injection de carburant d'un moteur a combustion interne |
Also Published As
Publication number | Publication date |
---|---|
DE102006045897B4 (de) | 2008-09-11 |
DE102006045897A1 (de) | 2008-04-03 |
WO2008037745A2 (fr) | 2008-04-03 |
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